为了简化模拟控制部分、降低设计难度、增强系统功能，本文将LPC2214芯片嵌入到在 线式UPS系统中，通过数字电路和软件的结合提升系统的性能，从而使UPS向智能型化、网络化发展。本文将着重介绍了LPC2214主控芯片的硬件设计， 给出系统工作原理以及各模块的工作电路。-In order to simplify the analog control part, to reduce difficult to design and enhance system functionality, this article will LPC2214 chip embedded into the on-line UPS system, through a combination of digital circuits and software to enhance system performance, allowing UPS to intelligent, network-based development. This article focuses on the LPC2214 chip master hardware design, given the system works, as well as the work of the module circuit.